Kaeng Krachan National Park. Thailand's largest and arguably most impressive National Park for primary forest access.

Over 400 species of birds are known to occur within the Park’s boundaries, and 57 mammals. Larger mammals include elephant, gaur, sambar deer, banteng, serow, and bear, indo-chinese tiger, leopard, both common and Fea’s muntjac. Malayan tapir, white-handed gibbon, dusky and banded langurs, Asian wild dog, otter, and wild boar.